CN110625920A - Mobile phone automatic film sticking machine - Google Patents

Abstract

An automatic film laminating machine for mobile phones, comprising: a manipulator, a material box, a suction cup, a mobile phone positioning device, a mobile phone protection sheet positioning device, a mobile phone cleaning device, and a film tearing device; the mobile phone cleaning device includes a lifting motor, a plasma cleaning nozzle, and a secondary cleaning device The rubber roller, the lifting motor drives the plasma cleaning nozzle and the secondary cleaning rubber roller to move up and down; the film tearing device includes a tearing mechanism and a film clamping mechanism, and the film clamping mechanism includes a splint motor, a lifting seat, and a diaphragm clamp installed on the lifting seat The splint motor drives the lifting seat to drive the diaphragm clamping part to move up and down, and the tearing and touching mechanism includes a skateboard bracket and a drive unit for driving the slider bracket to move. The invention not only improves the efficiency of sticking the film, but also has a more thorough cleaning effect, more accurate positioning of the protective film of the mobile phone, and does not need to use tape when tearing the film, which not only saves the cost of the tape, but also has a high success rate of film tearing.

Description

Mobile phone automatic film sticking machine

technical field

The invention relates to the field of mobile phone film sticking, in particular to an automatic mobile phone film sticking machine.

Background technique

The mobile phone film sticking in the prior art is usually done manually, so the precision of the sticking film is not high, and the film sticking efficiency is low. In addition, the mobile phone film screen cleaning device in the prior art usually only cleans once, so the cleaning is not thorough, the cleaning effect is not good, and the positioning of the mobile phone is not accurate, the cleaning coverage is sometimes not comprehensive, and the problem of omission may occur. In addition, the film tearing device in the prior art generally uses adhesive tape to stick the diaphragm and tear it off from the protective sheet, which has the following defects: first, the tape needs to be consumed;

Contents of the invention

The invention provides an automatic film sticking machine for mobile phones to solve at least one of the above technical problems.

In order to solve the above problems, as an aspect of the present invention, a mobile phone automatic film sticking machine is provided, including: a manipulator, a material box, a suction cup, a mobile phone positioning device, a mobile phone protection sheet positioning device, a mobile phone cleaning device, and a film tearing device. The manipulator places the mobile phone protection sheet sucked in the material box on the mobile phone protection sheet positioning device through the suction cup; the mobile phone cleaning device includes a lifting motor, a plasma cleaning nozzle, and a secondary cleaning rubber roller. The lifting motor drives the plasma cleaning nozzle and the secondary cleaning rubber roller to move up and down, and the manipulator drives the mobile phone positioning device to move to the mobile phone cleaning device to clean the mobile phone placed on the mobile phone positioning device; The film tearing device includes a tearing mechanism and a clamping mechanism, and the clamping mechanism includes a splint motor, a lifting seat, and a film clamping part installed on the lifting seat, and the splint motor drives the lifting seat to drive the The diaphragm clamping part moves up and down, the tearing mechanism includes a slide bracket and a drive unit for driving the slide bracket to move, the splint motor is fixedly connected with the slide bracket, and the manipulator passes through the suction cup The mobile phone protection sheet positioned on the mobile phone protection sheet positioning device is moved to the film clamping mechanism to tear the film; the manipulator sticks the mobile phone protection sheet after tearing the film to the mobile phone through the suction cup .

Preferably, the mobile phone positioning device includes a positioning platform and two positioning and clamping mechanisms, the two positioning and clamping mechanisms are installed on the positioning platform along directions perpendicular to each other, and the positioning and clamping mechanisms include stepping motors , a belt, an adjustment plate, an elastic buffer positioning assembly, and a travel switch, the stepper motor drives the belt to transfer, the adjustment plate is fixedly connected to the first side of the belt, the elastic buffer positioning assembly is connected to the The second side of the belt is fixedly connected, and the elastic buffer positioning assembly triggers the travel switch to generate a stop signal for stopping the stepping motor during the process of clamping the mobile phone protection sheet.

Preferably, the elastic buffer positioning assembly includes a bracket, a positioning plate, a guide rod, and a buffer spring, the guide rod is movably arranged in the through hole of the bracket, the positioning plate and the first guide rod The ends are connected, the buffer spring is sleeved on the guide rod, and the travel switch is installed on the bracket.

Preferably, the positioning and clamping mechanism further includes a guide rail, and the adjustment plate and the elastic buffer positioning assembly are both slidably arranged on the guide rail.

Preferably, the positioning and clamping mechanism further includes a connecting plate, a driving wheel and a driven wheel, the output end of the stepping motor is connected to the driving wheel, the belt cooperates with the driving wheel and the driven wheel, and the Guide rails, driving wheels and driven wheels are all installed on the connecting plate.

Preferably, the mobile phone cleaning device further includes a silicone scraper, and the lifting motor drives the silicone scraper to lift up and down.

Preferably, the mobile phone automatic film laminating machine also includes a rubber roller cleaning mechanism, and the rubber roller cleaning mechanism includes a tape unwinding reel, a tape rewinding reel, and a tape cleaning platform, and the tape unwinding reel, the tape rewinding reel An adhesive tape is provided, the adhesive tape cleaning platform is arranged on the moving path of the adhesive tape, and the mobile phone cleaning device moves between the mobile phone positioning device and the adhesive tape cleaning platform.

Preferably, the clamping mechanism further includes a base, a lifting screw, and a guide column, the output end of the splint motor is connected to the lifting screw, and the lifting screw is screwed to the lifting seat, so that The splint motor is installed on the base, the guide column is movably inserted in the guide hole of the base, the lower end of the guide column is fixedly connected with the lifting seat, and the base and the Skateboard bracket connection.

Preferably, the drive unit includes a film tearing motor, a horizontal screw rod, and a track, the slide bracket is slidably connected to the track, the output end of the film tearing motor is connected to the horizontal screw rod, and the horizontal wire The rod is threadedly connected with the skateboard bracket.

Preferably, the lifting seat is L-shaped, one side of the L-shape is located below the base, and the other side of the L-shape is located outside the skateboard support.

Due to the adoption of the above technical solution, the present invention can realize automatic cleaning, film taking, film tearing and film sticking. Tape is required, which not only saves the cost of tape, but also has a high success rate of tearing off the film.

Description of drawings

Fig. 1 schematically shows a schematic view of the overall structure of the present invention;

Fig. 2 schematically shows a perspective view of a mobile phone protective sheet positioning device;

Fig. 3 schematically shows the top view of the mobile phone protective sheet positioning device;

Fig. 4 schematically shows a side view of the mobile phone protective sheet positioning device;

Fig. 5 schematically shows a schematic view of the structure of the positioning clamping mechanism;

Fig. 6 schematically shows the first schematic diagram of the mobile phone cleaning device;

Fig. 7 schematically shows a schematic diagram of a mobile phone cleaning device and a rubber roller cleaning mechanism;

Fig. 8 schematically shows the second schematic diagram of the mobile phone cleaning device;

Fig. 9 schematically shows a schematic view of the structure of the film tearing device;

Fig. 10 schematically shows the structure diagram of the clamping mechanism.

Reference signs in the figure: 1. Manipulator; 2. Material box; 3. Suction cup; 4. Mobile phone positioning device; 5. Mobile phone protection sheet positioning device; 6. Mobile phone cleaning device; 7. Film tearing device; 8. Mobile phone protection sheet ;9. Lifting motor; 10. Plasma cleaning nozzle; 11. Secondary cleaning rubber roller; 12. Plywood motor; 13. Lifting seat; 14. Diaphragm clamping part; Positioning and clamping mechanism; 18. Stepper motor; 19. Belt; 20. Adjusting plate; 21. Elastic buffer positioning component; 22. Travel switch; 23. Bracket; 24. Positioning plate; 25. Guide rod; 26. Buffer spring 27, guide rail; 28, connecting plate; 29, driving wheel; 30, driven wheel; 31, silicone scraping plate; 32, rubber roller cleaning mechanism; 33, tape unwinding roll; 34, tape rewinding roll; 35, Tape cleaning platform; 36. Base; 37. Lifting screw; 38. Tear film motor; 39. Horizontal screw; 40. Guide column; 41. Track; 42. CCD light source; 43. Tensioning bolt; 43. Adjustment Nut; 44, first guide part; 45, second guide part; 46, substrate; 47, diaphragm; 48, diaphragm recovery frame.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

One aspect of the present invention provides an automatic film laminating machine for mobile phones, including: a manipulator 1, a material box 2, a suction cup 3, a mobile phone positioning device 4, a mobile phone protection sheet positioning device 5, a mobile phone cleaning device 6, and a film tearing device 7, Described manipulator 1 is placed on the mobile phone protective sheet locating device 5 that the mobile phone protective sheet 8 that absorbs in the described material box 2 is sucked by described sucker 3; Described mobile phone cleaning device 6 comprises lifting motor 9, plasma cleaning nozzle 10, and the secondary cleaning rubber roller 11, the lifting motor 9 drives the plasma cleaning nozzle 10 and the secondary cleaning rubber roller 11 lifting motion, and the manipulator drives the mobile phone positioning device 4 to move to the mobile phone cleaning device 6 to The mobile phone placed on the mobile phone positioning device 4 is cleaned; the film tearing device 7 includes a tearing mechanism and a film clamping mechanism, and the film clamping mechanism includes a splint motor 12, a lifting seat 13, and is installed on the lifting seat The diaphragm clamping part 14 on 13, the splint motor 12 drives the lifting seat 13 to drive the diaphragm clamping part 14 to move up and down, and the tearing mechanism includes a slide bracket 15, and is used to drive the slide plate The driving unit of the support movement, the splint motor 12 is fixedly connected with the skateboard bracket 15, and the manipulator 1 moves the mobile phone protection sheet 8 positioned on the mobile phone protection sheet positioning device 5 to the Tear the film at the clamping mechanism; the manipulator 1 sticks the mobile phone protection sheet 8 after the film is torn on the mobile phone through the suction cup 3 . The manipulator 1 is preferably an XYZR four-axis manipulator.

Preferably, the mobile phone cleaning device 6 further includes a silicone scraper 31, and the lifting motor 9 drives the silicone scraper 31 to lift. Plasma cleaning nozzle 10, silica gel scraping plate 31 and secondary cleaning rubber roller 11 can move downward under the effect of lifting motor 9, to approach the surface of the mobile phone placed on the mobile phone positioning device 4. During use, the mobile phone positioning device 4 and the mobile phone on it move along the first guide part 44 toward the direction close to the mobile phone cleaning device 6. During the movement, it can effectively scrape the oil stains on the surface of the mobile phone that are difficult to remove, and effectively stick the mobile phone away. Dust remaining on the surface, marks after effective cleaning and bonding, after the above three cleanings, ensure that the bonding surface of the mobile phone is clean and free of residue.

The working principle of the mobile phone cleaning device 6 is as follows: when in use, the mobile phone is installed on the mobile phone positioning device 4 for fixing, and the mobile phone positioning device 4 is moved to the bottom of the mobile phone cleaning device 6 . Next, the height of the plasma cleaning nozzle 10 and the secondary cleaning rubber roller 11 is adjusted by the lifting motor 9 . Then, the plasma cleaning nozzle 10 emits a plasma beam to the bonding surface of the mobile phone, utilizes the plasma beam to impact and peel off the oily dust on the surface of the mobile phone, and then the secondary cleaning rubber roller 11 sticks away the residual oily dust on the bonding surface of the mobile phone to ensure that the mobile phone Fitting surface is clean and tidy. Among them, the plasma cleaning nozzle 10 can spray plasma beams to impact the surface of the mobile phone, peel off the oil stains and dust, and complete the first mobile phone cleaning work; then the second cleaning rubber roller 11 sticks and removes the residual stains on the mobile phone surface to improve the cleaning effect of the mobile phone. The lifting motor 9 can adjust the height of the plasma cleaning nozzle 10 and the secondary cleaning rubber roller 11 to control the distance between it and the surface of the mobile phone. Due to the adoption of the above technical solution, compared with the prior art, the present invention can spray plasma beams to the bonding surface of the mobile phone through the plasma cleaning nozzle, impact and peel off the oil stains and dust on the surface of the mobile phone, and then clean the surface of the mobile phone through the secondary cleaning rubber roller and clean the surface of the mobile phone. Take away the peeled off oil and dust residue, so the cleaning of the mobile phone is more thorough and effective, ensuring that the bonding surface of the mobile phone is clean and tidy before the film is applied.

The working principle of the film tearing device 7 is as follows: the suction cup 3 sucks the mobile phone protection sheet 8, and then the diaphragm 47 extended from the front section of the mobile phone protection sheet 8 is clamped by the clamping mechanism, and finally the diaphragm 47 is protected from the mobile phone by the tearing mechanism. Tear off on sheet 8, drop in the film recycling frame 48. Wherein, the clamping mechanism drives the lifting seat 6 and the diaphragm clamping part 7 on it to move downward through the splint motor 23 to clamp the diaphragm 47, and then the entire clamping mechanism moves to the left to realize film tearing. Due to the adoption of the above technical solution, the present invention can clamp the diaphragm extending from the front section of the mobile phone protection sheet through the clamping mechanism, and tear it horizontally to ensure that the clamping film is firm and the tearing film is reliable. Compared with the tearing film mechanism in the prior art, No tape is consumed, reducing costs.

The overall working process of the present invention is as follows: the mobile phone is first placed on the mobile phone positioning device 4 so as to fix the mobile phone, and then the manipulator 1 moves the mobile phone positioning device 4 to the bottom of the mobile phone cleaning device 6, so that its surface is cleaned by the mobile phone cleaning device 6 Clean and clean. At the same time, the manipulator 1 sucks the mobile phone protection sheet 8 from the material box 2 through the suction cup 3, and places the sucked mobile phone protection sheet 8 on the mobile phone protection sheet positioning device 5 for more accurate positioning. Then, the mobile phone protection sheet 8 after being positioned by the mobile phone protection sheet positioning device 5 is sucked on the suction cup 3, and the suction cup 3 is moved to the clamping film mechanism place; Lifting and clamping the diaphragm 47 protruding from the front end of the mobile phone protection sheet 8 under the action, and then the tearing mechanism drives the overall lateral movement of the clamping mechanism, thereby tearing the diaphragm 47 from the mobile phone protection sheet 8. Then, the manipulator 1 moves the suction cup 3 to the position of the mobile phone positioning device 4, and makes the suction cup 3 move towards the direction of the mobile phone, thereby realizing film sticking.

Due to the adoption of the above technical solution, the present invention can realize automatic cleaning, film taking, film tearing and film sticking. Tape is required, which not only saves the cost of tape, but also has a high success rate of tearing off the film.

Conventional positioning devices for mobile phone protection sheets in the prior art are generally adjusted by cylinders, and the baffles are rigidly positioned, and there are several defects: (1) The adjustment position of the cylinder is single, which limits the variety of products; (2) The positioning accuracy is low, which is not conducive to mobile phones. High-precision film correction; (3) Rigid positioning is not suitable for fragile products.

For this reason, preferably, described mobile phone positioning device 4 comprises positioning platform 16 and two positioning clamping mechanisms 17, and described two positioning clamping mechanisms 17 are installed on described positioning platform 16 along the direction perpendicular to each other, and described The positioning and clamping mechanism 17 includes a stepper motor 18, a belt 19, an adjustment plate 20, an elastic buffer positioning assembly 21, and a travel switch 22. The first side of the belt 19 is fixedly connected, and the elastic buffer positioning assembly 21 is fixedly connected with the second side of the belt 19, and the elastic buffer positioning assembly 21 triggers the travel switch in the process of clamping the mobile phone protection sheet 8 22 generates a stop signal for stopping the stepper motor 18 . The mobile phone positioning device 4 can solve the problem that the film suction cup and the protective film are eccentric or angled, which leads to inconsistent starting positions when tearing the film.

Since the two positioning and clamping mechanisms 17 are installed in the direction perpendicular to each other, a workpiece clamping area is formed between the adjustment plate 20 and the elastic buffer positioning assembly 21 on the two positioning and clamping mechanisms 17. During use, the mobile phone is protected. The sheet 8 is placed in this area. Then, the stepper motor 18 drives the adjustment plate 20 connected with the belt and the elastic buffer positioning assembly 21 to move toward each other through the belt 19 . Therefore, the mobile phone protection sheet 8 can be approached from two directions of XY, and finally the mobile phone protection sheet 8 is clamped.

During the clamping process, the elastic buffer positioning component 21 can adapt to the clamping process and undergo buffered movement, thereby adapting to the fragile material of the mobile phone protection sheet 8 and preventing it from being directly clamped and damaged. When the elastic buffer positioning component 21 moves to a predetermined position during the buffering process, it will touch the travel switch 22, so that the travel switch 22 generates the above-mentioned stop signal, so that the stepping motor stops moving, so that it can not only effectively locate, but also Make sure that the pre-tightening force is appropriate so as not to damage the protective sheet 8 of the mobile phone.

Due to the adoption of the above technical solution, the present invention adopts a stepping motor and a belt for driving, and its adjustable clamping position can be set arbitrarily, and the motor driving is more reliable than the cylinder driving, so it is suitable for protection sheets of different specifications. With high positioning accuracy, wide application range and strong mechanism stability, it solves the positioning correction of mobile phone film and improves the precision of film sticking.

Preferably, the elastic buffer positioning assembly 21 includes a bracket 23, a positioning plate 24, a guide rod 25, and a buffer spring 26, the guide rod 25 is movably arranged in the through hole of the bracket 23, and the positioning plate 24 It is connected with the first end of the guide rod 25 , the buffer spring 26 is sleeved on the guide rod 25 , and the travel switch 22 is installed on the bracket 23 . Preferably, an adjusting nut 43 is mounted on the second end of the guide rod 25 . Preferably, the buffer spring 26 is disposed between the bracket 23 and the adjusting nut 43 .

Preferably, the positioning and clamping mechanism 17 further includes a guide rail 27 on which the adjustment plate 20 and the elastic buffer positioning assembly 21 are both slidably arranged.

Preferably, the positioning and clamping mechanism 17 also includes a connecting plate 28, a driving wheel 29 and a driven wheel 30, the output end of the stepping motor 18 is connected to the driving wheel 29, and the belt 19 is connected to the driving wheel 29. The driven wheel 30 cooperates, and the guide rail 27 , the driving wheel 29 and the driven wheel 30 are all installed on the connecting plate 28 . Preferably, the positioning and clamping mechanism 17 further includes a tension bolt 43 for adjusting the position of the driven wheel 30 .

Preferably, the mobile phone automatic film laminating machine also includes a rubber roller cleaning mechanism 32, and the rubber roller cleaning mechanism 32 includes a tape unwinding reel 33, an adhesive tape rewinding reel 34, and a tape cleaning platform 35, and the tape unwinding reel 33 1. Adhesive tape is provided on the tape rewinding reel 34, and the tape cleaning platform 35 is arranged on the movement path of the tape, and the mobile phone cleaning device 6 moves between the mobile phone positioning device 4 and the tape cleaning platform 35 .

On the adhesive tape unwinding reel 33 is a clean adhesive tape, on the adhesive tape rewinding reel 34 is the dirty adhesive tape after sticking dust, and the mobile phone cleaning device 6 moves along the second guide part 45 to the At the position where the adhesive tape cleaning platform 35 is located, the clean adhesive tape is released from the adhesive tape unwinding reel 33, and when it passes through the parts on the mobile phone cleaning device 6, the oil stain dust adhering to it will be taken away, thereby realizing the cleaning of the mobile phone. Recycling of the cleaning device 6.

In the above technical solution, the present invention locates and clamps the mobile phone by the mobile phone positioning platform, scrapes and cleans the mobile phone by the mobile phone cleaning device 6 to ensure that the bonding surface is free of oil stains and dust, and then the rubber roller cleaning mechanism 32 puts the mobile phone on the cleaning mechanism. Adhered oily dust sticks away, keeping the cleaning mechanism of the mobile phone clean for recycling. Compared with the prior art, due to the adoption of the above-mentioned technical solution, the present invention has high positioning accuracy, wide cleaning range, and more thorough cleaning multiple times, ensuring that the bonding surface of the mobile phone is clean and tidy before the film is applied.

Preferably, the clamping mechanism further includes a base 36, a lifting screw 37, and a guide post 40, the output end of the splint motor 12 is connected to the lifting screw 37, and the lifting screw 37 is connected to the lifting screw 37. The lifting seat 13 is threaded, the splint motor 12 is installed on the base 36, the guide column 40 is movably set in the guide hole of the base 36, the lower end of the guide column 40 is connected to the The lifting base 13 is fixedly connected, and the base 36 is connected with the slide bracket 15 .

Preferably, the drive unit includes a film tearing motor 38, a horizontal screw rod 39, and a track 41, the slide bracket 15 is slidably connected to the track 41, and the output end of the tearing film motor 38 is connected to the horizontal screw rod 39, and the horizontal screw rod 39 is screwed to the slide bracket 15.

Preferably, the lifting base 13 is L-shaped, one side of the L-shape is located below the base 36 , and the other side of the L-shape is located outside the skateboard support 15 .

In a more preferred embodiment, the present invention also comprises CCD light source 42, is used for taking pictures of mobile phone positioning device 4 and mobile phone protective sheet positioning device 5, and image processing device, and image processing device can be according to the photographing device The photo determines the position of the mobile phone on the mobile phone positioning device 4 and the position of the mobile phone protective sheet on the mobile phone protective sheet positioning device 5, thereby sticking the film more accurately.

In one embodiment, the user can select the brand and model of the mobile phone on the operation interface, and put the mobile phone on the mobile phone positioning device 4 at the window, and the mobile phone positioning device 4 will transfer the mobile phone to the cleaning station, so that the mobile phone cleaning device 6 Clean up the dust, grease and other residues on the surface of the mobile phone. Then, the mobile phone positioning device 4 transmits the mobile phone to the three stations, and the photo A is obtained by taking pictures of the CCD to determine the reference position of the mobile phone. At the same time, the manipulator extracts the mobile phone protective sheet 8 corresponding to the brand model from the material box 2, and the film is torn off by the film tearing mechanism to expose the adhesive layer of the protective sheet. After adjusting the positioning, the CCD takes pictures, compares photo A, and adjusts the position of the protective sheet. In this way, the protective sheet after tearing the film is accurately attached to the surface of the cleaned mobile phone.

In this embodiment, the present invention realizes automatic mobile phone filming instead of artificial mobile phone filming, with higher filming precision, higher filming efficiency, and better filming effect; the present invention can be equipped with a background data statistics system, which can provide real-time statistics and feedback of various types of products in the market. Mobile phone circulation of brands and models; further, the present invention has strong versatility, a variety of different types of protective sheets can be placed in the material box, which can basically meet the film needs of mainstream mobile phone models in the market.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. An automatic sticking film machine of cell-phone which characterized in that includes: the device comprises a manipulator (1), a material box (2), a sucking disc (3), a mobile phone positioning device (4), a mobile phone protection sheet positioning device (5), a mobile phone cleaning device (6) and a film tearing device (7), wherein the manipulator (1) places a mobile phone protection sheet (8) sucked from the material box (2) on the mobile phone protection sheet positioning device (5) through the sucking disc (3);

the mobile phone cleaning device (6) comprises a lifting motor (9), a plasma cleaning spray head (10) and a secondary cleaning rubber roller (11), the lifting motor (9) drives the plasma cleaning spray head (10) and the secondary cleaning rubber roller (11) to move up and down, and the manipulator drives the mobile phone positioning device (4) to move towards the mobile phone cleaning device (6) so as to clean a mobile phone placed on the mobile phone positioning device (4);

the film tearing device (7) comprises a film tearing mechanism and a film clamping mechanism, the film clamping mechanism comprises a clamping plate motor (12), a lifting seat (13) and a film clamping part (14) installed on the lifting seat (13), the clamping plate motor (12) drives the lifting seat (13) to drive the film clamping part (14) to move up and down, the film tearing mechanism comprises a sliding plate support (15) and a driving unit used for driving the sliding plate support to move, the clamping plate motor (12) is fixedly connected with the sliding plate support (15), and the manipulator (1) moves a mobile phone protection sheet (8) positioned on the mobile phone protection sheet positioning device (5) to the film clamping mechanism through the sucking disc (3) to tear a film;

the manipulator (1) is used for sticking the mobile phone protection sheet (8) to the mobile phone after the film is torn through the sucking disc (3).

2. The automatic mobile phone film sticking machine according to claim 1, wherein the mobile phone positioning device (4) comprises a positioning platform (16) and two positioning and clamping mechanisms (17), the two positioning and clamping mechanisms (17) are arranged on the positioning platform (16) along mutually perpendicular directions, the positioning and clamping mechanism (17) comprises a stepping motor (18), a belt (19), an adjusting plate (20), an elastic buffering positioning component (21) and a travel switch (22), the stepping motor (18) drives the belt (19) to transfer, the adjusting plate (20) is fixedly connected with the first side of the belt (19), the elastic buffering positioning component (21) is fixedly connected with the second side of the belt (19), the elastic buffer positioning component (21) triggers the travel switch (22) to generate a stop signal for stopping the stepping motor (18) in the process of clamping the mobile phone protection sheet (8).

3. The automatic film sticking machine for mobile phones according to claim 2, wherein the elastic buffering positioning assembly (21) comprises a support (23), a positioning plate (24), a guide rod (25) and a buffering spring (26), the guide rod (25) is movably arranged in a through hole of the support (23), the positioning plate (24) is connected with a first end of the guide rod (25), the buffering spring (26) is sleeved on the guide rod (25), and the travel switch (22) is installed on the support (23).

4. The automatic mobile phone film sticking machine according to claim 3, wherein the positioning and clamping mechanism (17) further comprises a guide rail (27), and the adjusting plate (20) and the elastic buffer positioning assembly (21) are slidably arranged on the guide rail (27).

5. The automatic mobile phone film sticking machine according to claim 4, wherein the positioning and clamping mechanism (17) further comprises a connecting plate (28), a driving wheel (29) and a driven wheel (30), the output end of the stepping motor (18) is connected with the driving wheel (29), the belt (19) is matched with the driving wheel (29) and the driven wheel (30), and the guide rail (27), the driving wheel (29) and the driven wheel (30) are all installed on the connecting plate (28).

6. The automatic film sticking machine for mobile phones according to claim 1, wherein the mobile phone cleaning device (6) further comprises a silica gel scraping plate (31), and the lifting motor (9) drives the silica gel scraping plate (31) to lift.

7. The automatic mobile phone film sticking machine according to claim 1, further comprising a rubber roll cleaning mechanism (32), wherein the rubber roll cleaning mechanism (32) comprises a tape feeding roll (33), a tape feeding roll (34) and a tape cleaning platform (35), a tape is arranged on the tape feeding roll (33) and the tape feeding roll (34), the tape cleaning platform (35) is arranged on a moving path of the tape, and the mobile phone cleaning device (6) moves between the mobile phone positioning device (4) and the tape cleaning platform (35).

8. The automatic mobile phone film sticking machine according to claim 1, wherein the film clamping mechanism further comprises a base (36), a lifting screw rod (37) and a guide post (40), the output end of the clamp plate motor (12) is connected with the lifting screw rod (37), the lifting screw rod (37) is in threaded connection with the lifting seat (13), the clamp plate motor (12) is installed on the base (36), the guide post (40) is movably arranged in a guide hole of the base (36) in a penetrating manner, the lower end of the guide post (40) is fixedly connected with the lifting seat (13), and the base (36) is connected with the sliding plate support (15).

9. The automatic mobile phone film sticking machine according to claim 1, wherein the driving unit comprises a film tearing motor (38), a horizontal screw rod (39) and a rail (41), the sliding plate support (15) is slidably connected with the rail (41), the output end of the film tearing motor (38) is connected with the horizontal screw rod (39), and the horizontal screw rod (39) is in threaded connection with the sliding plate support (15).

10. The automatic mobile phone film sticking machine according to claim 8, wherein the lifting seat (13) is L-shaped, one side of the L-shape is located below the base (36), and the other side of the L-shape is located outside the sliding plate support (15).